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Celestron NexStar 4SE Computerised Maksutov-Cassegrain Telescope

SKU: CLS-11049

  • Celestron’s iconic “orange tube” design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike.

  • 4" aperture with excellent light-gathering ability provides impressive views of the Moon and planets, along with deep sky objects like the Orion Nebula.

  • Fully-automated GoTo mount with database of 40,000+ celestial objects automatically locates and tracks objects for you.

  • SkyAlign technology gets your telescope aligned and ready to observe in minutes. Even if you’re unfamiliar with the night sky, you can easily align your telescope on any three bright objects.

  • Unique single fork arm design and sturdy steel tripod all break down into separate components for easy transport and quick assembly.

In stock

Regular Price: $1,420.00

Special Price $1,199.95

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Celestron’s iconic orange tube telescope combines advanced features and excellent optics in one easy-to-use system - the NexStar 4SE.

Offering impressive views at an affordable price, it’s the perfect choice for your first serious telescope!

Celestron founder's vision, reimagined for the 21st century:

In the 1970s, Celestron's Cassegrain telescopes were all the rage! Celestron's founder (Tom Johnson) brought the hobby of astronomy to the masses and invented their unique method of producing Schmidt corrector plates for superior views and maximum portability. Johnson believed in creating high-quality optical instruments at an affordable price, and inspired a generation of amateur astronomers (us)!

Today, Celestron is still building upon this original vision, improving and adding on innovative features while staying true to our founder’s intent.

View the Universe's Most Impressive Celestial Objects:

The 4SE's four-inch primary mirror packs enough light-gathering ability for you to observe the best that the solar system has to offer! You will clearly observe Saturn’s rings and Jupiter's cloud bands. Beyond the solar system, your faithful 4SE will show you hundreds of pinpoint stars in the Hercules Globular Cluster, the spiral arms of the Whirlpool Galaxy, and much more. Oh, and don’t forget the Moon! With this telescope, you’ll see its craters and geographic features like never before.

Revolutionary Single Fork Arm Mount:

We all know the best telescope is the one you will use most often. That’s why the NexStar SE’s unique, patented single fork arm mount was made just for you! It’s incredibly portable and makes setup quick and easy. The telescope kit breaks down into several light and compact pieces, making it easy to transport even in small vehicles. You’ll have no problem getting the NexStar SE to your favorite observing site, or setting it up quickly in your backyard.

The high-quality components and sturdy construction of the mount gives the NexStar SE that much-needed smooth tracking accuracy to observe and follow your favorite targets with ease. You can use the included NexStar+ hand control to locate over 40,000 celestial objects, or take a Sky Tour and let your telescope show you the best objects currently visible.

Aligning your telescope is simple and painless with SkyAlign! This process makes alignment as easy as 1-2-3: just center three bright objects in your eyepiece and press ALIGN. For even easier alignment, attach the optional StarSense AutoAlign accessory and your NexStar SE will align itself!

Advanced Features | Let the NexStar SE Grow with You:

The NexStar SE series is compatible with all the high-tech accessories advanced users love. With accessories such as the SkyPortal Wi-Fi Module, you can control your telescope wirelessly using your iPhone or iPad!

If you’re interested in astroimaging or astrophotography, this telescope is perfect with its built-in wedge that allows you to track long exposures. For planetary imaging, there’s no better choice than a NexStar 6SE paired with an astroimaging camera. From your first observing session and for years to come, the NexStar SE is your trusted companion.

Compatible with:


Optical Tube Info: 

Optical Design



102mm (4.02")

Focal Length

1325mm (52")

Focal Ratio


Focal Length of Eyepiece 1

25mm (.98")

Magnification of Eyepiece 1



Red Dot Finderscope (StarPointer)

Star Diagonal

Internal Flip mirror for straight through or 90 ° viewing angle 

Optical Tube


Highest Useful Magnification


Lowest Useful Magnification


Limiting Stellar Magnitude


Resolution (Rayleigh)

1.37 arc seconds

Resolution (Dawes)

1.14 arc seconds

Secondary Mirror Obstruction

35mm (0.38")

Optical Coatings

StarBright XLT

Optical Tube Length

343mm (13.5")

Optical Tube Diameter

125mm (4.9")

Optical Tube Weight



Vixen / CG-5 Dovetail Bar

Mount Info:

Mount Type

Computerised Altitude-Azimuth Single Fork Arm

Instrument Load Capacity


Height adjustment range (includes mount and tripod)

939.8mm - 2397mm

Tripod Leg Diameter


Mount Head Weight


Accessory Tray


Tripod Weight


Slew Speeds

9 slew speeds - max speed 3°/second

Tracking Rates

Sidereal, Solar, and Lunar

Tracking Modes

Alt-Az, EQ North & EQ South



Dovetail Compatibility

Vixen / CG-5 dovetail

Auxiliary ports

1 Aux port

Autoguide port


USB Port

Yes, Hand Control input

Power Requirements

  • 8-AA batteries (not included)
  • 12 VDC-750 mA (Tip positive)

Motor Drive

DC servo motors

Alignment Procedures

  • SkyAlign
  • Auto 2-Star Align
  • 2-Star Align
  • 1-Star Align
  • Solar System Align
  • Last Alignment
  • Quick Align
  • EQ North/EQ South Alignment (EQ align requires Celestron's wedge)

Periodic Error Correction


Computerized Hand Control

  • Double line, 18 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC connection

NexStar+ Database

  • 40,000 objects
  • 200 user defined programmable objects
  • Enhanced information on over 200 objects


  • Celestron's Starry Night Special Edition Software
  • SkyPortal App

Included Items

  • NexStar SE OTA
  • Single Fork Arm Mount
  • Tripod
  • Accessory Tray
  • Built-in Wedge
  • Star Pointer Finderscope
  • NexStar+ Hand Control
  • 25mm Eyepiece
  • Star Diagonal

About Celestron
Celestron was founded by Tom Johnson whose first telescope design was a simple 6-inch reflector, built for his young son. He gradually progressed to making larger scopes in more sophisticated designs. Today, the Celestron company is an industry leader in designing and manufacturing optical equipment including telescopes (computerised and non-computerised), binoculars, spotting scopes and its accompanying accessories. Celestron's legacy spans 50 years, and has grown to enjoy recognition from amateurs to serious astronomers globally. The company seeks to remain innovative by growing its product offerings, while supporting science education around the world.

Additional Information

Additional Information

Optical Design No
Mount Type Alt-azimuth mount
Aperture 102mm (4.02")
Focal Ratio f/13
Eyepiece 1 25mm
Eyepiece 2 No
Eyepiece 3 No
Finderscope Make Star Pointer
Electronic Hand Control Yes
Motor Drive Yes
Go-To Functionality No
Focal Length 1325mm (52")
Tripod No
Tube Length 343mm (13.5")
Highest Magnification 241x
Warranty Information 2 Years Warranty
Additional Specifications of Product No
Shipping Dimensions No
Shipping Weight No


Customer Reviews

Great price, awesome views Review by Marcus
Overall Score
really good telescope, very easy to set up. I thought the alignment step would put me off but I managed to do it quite easily. Sighted Saturn without much trouble.
Thanks Optics Central, I love my telescope!! (Posted on 3/06/2014)
Perfect for travelling Review by Pete .S
Overall Score
Work send me out of town a lot this year, so I bought this. It is a decent compact scope, great for planetary objects! The details are amazing. However, it wasn't great when i tried to look at star clusters or galaxies (although Orion nebula looks pretty good). All in all, this is a great telescope for serious beginners or if you need a smaller telescope to take around. (Posted on 29/05/2013)
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